Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather near Marshall

HarrisonUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 4 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

Nothing else has been detected within 20 km in the last 24 hours.

This alert expired on 23 May 2026 at 13:15 UTC. It is kept here as a record.

No stronger detection stands among the 44 recorded within 20 km of this point since 15 March 2026 — 35 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued May 23 at 7:11AM CDT until May 23 at 8:15AM CDT by NWS Shreveport LA

An estimated 106,107 people live within 50 km of this point.

Nearby, since 15 March 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 43 out of 100, at 81 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)43 / 100
Our confidence81%
Coordinates32.5975, -94.3704
Nearest CityMarshall (6 km)
Population Exposed106.1K within 50 km
Impact Tiersignificant
Timestamp2026-05-23T12:11:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.e20b216fd209e37246beac05855cc278

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescMiller, AR; Caddo, LA; Cass, TX; Harrison, TX; Marion, TX; Panola, TX; Cass, TX; Harrison, TX; Marion, TX; Morris, TX; Panola, TX; Shelby, TX
HeadlineSevere Thunderstorm Warning issued May 23 at 7:11AM CDT until May 23 at 8:15AM CDT by NWS Shreveport LA
Expires2026-05-23T08:15:00-05:00
SenderNameNWS Shreveport LA
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.e20b216fd209e37246beac05855cc278dece1d1e.001.1","noaa_urn:oid:2.49.0.1.840.0.04198536427e41756fc6f51516cad53578c8ce7a.001.1"]

Safety Information

Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.

Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.

This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.

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Calamity.live data shows a weather event with CalamityScore 43/100, near Marshall (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.